Partitioning and sources of PAHs in wastewater receiving streams of Tianjin, China

Qi, Weixiao; Qu, Jiuhui; Liu, Huijuan; Hu, Chengzhi; Lan, Huachun; Ren, Hai; Xu, Wei

doi:10.1007/s10661-011-2083-x

Cited by 11 publications

(4 citation statements)

References 32 publications

(43 reference statements)

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“…The sorption of organic compounds to POC is related to the character of the POC, such as its chemical composition, molecular weight, solution chemistry, pore size distribution, surface chemistry, and pore structure (Kilduff et al, 1996;Wang et al, 2011); Low molecular weight organic compounds are most competitive, participating in direct competition with other high molecular weight organic compounds for adsorption sites (Quinlivan et al, 2005). This explains, in line with the findings of Wu et al (2011) and Qi et al (2012), why relatively low in situ logK OC values were found for high molecular weight PAHs in this study, as these PAHs did not adsorb as effectively onto particles when compared to low molecular weight PAHs.…”

Section: The Partition Between the Dissolved And Particulate Phasessupporting

confidence: 66%

“…]pyrene) showed poor agreement with the logK OC predicted from logK OW Wu et al (2011). found that K P decreased from five-ring to six-ring PAHs andQi et al (2012) also found that the logK OC of dibenzo[a,h]anthracene was lower than the logK OW from some samples collected in the field. Moreover, colloidal organic carbon has been reported to enhance organic contaminant concentration in the aqueous environment…”

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confidence: 92%

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Transport and fluxes of terrestrial polycyclic aromatic hydrocarbons in a small mountain river and submarine canyon system

Lin

Lee

Brimblecombe

et al. 2016

Journal of Environmental Management

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Polycyclic aromatic hydrocarbon (PAH) concentrations in the Gaoping River were investigated in the wet and dry seasons. PAH characteristics allowed us to trace the particulate matter transported in a river-sea system containing a small mountain river, continental shelf, and submarine canyon. PAH signatures of the Gaoping River showed that particles were rapidly transported from the high mountain to the Gaoping coastal areas in the wet season, even arriving at the deep ocean via the Gaoping Submarine Canyon. By contrast, in the dry season, the particles were delivered quite slowly and included mostly pyrogenic contaminants. The annual riverine flux estimates for PAHs were 2241 kg in the Gaoping river-sea system. Only 18.0 kg were associated with the dissolved phase; the rest was bound onto particles. The fluxes caused by typhoons and their effects accounted for 20.2% of the dissolved and 68.4% of the particulate PAH fluxes from the river. Normalized partition coefficients for organic carbon suggested that PAHs were rigid on the particles. Distinct source characteristics were evident for PAHs on riverine suspended particles and coastal surface sediments: the particles in the wet season (as background signals) were similar to petrogenic sources, whereas the particles in the dry season had characteristics of coal burning and vehicular emissions. The sediments in the northwestern shelf were similar to pyrogenic sources (including vehicular emissions and coal and biomass burning), whereas the sediments in the canyon and southeastern shelf arose from mixed sources, although some diesel signature was also evident.

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Section: The Partition Between the Dissolved And Particulate Phasessupporting

confidence: 66%

mentioning

confidence: 92%

Transport and fluxes of terrestrial polycyclic aromatic hydrocarbons in a small mountain river and submarine canyon system

Lin

Lee

Brimblecombe

et al. 2016

Journal of Environmental Management

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“…Overall, PAHs come from two major sources: fuel combustion (pyrolytic) or petroleum related material (petrogenic). Molecular ratios have been developed for interpreting PAH composition and determining their possible sources (Yunker et al 1996;Qi et al 2012). The abundance ratio of 2-3 ring hydrocarbons to 4-6 ring hydrocarbons ANT/(ANT+PHE), FLU/(FLU+PYR), InP/(InP+ BghiPL) and BaANT/BaANT+CHY are usually used.…”

Section: Diagnostic Ratiosmentioning

confidence: 99%

PAH occurrence in chalk river systems from the Jura region (France). Pertinence of suspended particulate matter and sediment as matrices for river quality monitoring

Chiffre

Degiorgi

Morin‐Crini

et al. 2015

Environ Sci Pollut Res

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This study investigates the variations of polycyclic aromatic hydrocarbon (PAH) levels in surface water, suspended particulate matter (SPM) and sediment upstream and downstream of the discharges of two wastewater treatment plant (WWTP) effluents. Relationships between the levels of PAHs in these different matrices were also investigated. The sum of 16 US EPA PAHs ranged from 73.5 to 728.0 ng L −1 in surface water and from 85.4 to 313.1 ng L −1 in effluent. In SPM and sediment, ∑ 16 PAHs ranged from 749.6 to 2,463 μg kg −1 and from 690.7 μg kg −1 to 3,625.6 μg kg −1 , respectively. Investigations performed upstream and downstream of both studied WWTPs showed that WWTP discharges may contribute to the overall PAH contaminations in the Loue and the Doubs rivers. Comparison between gammarid populations upstream and downstream of WWTP discharge showed that biota was impacted by the WWTP effluents. When based only on surface water samples, the assessment of freshwater quality did not provide evidence for a marked PAH contamination in either of the rivers studied. However, using SPM and sediment samples, we found PAH contents exceeding sediment quality guidelines. We conclude that sediment and SPM are relevant matrices to assess overall PAH contamination in aquatic ecosystems. Furthermore, we found a positive linear correlation between PAH contents of SPM and sediment, showing that SPM represents an integrating matrix which is able to provide meaningful data about the overall contamination over a given time span.

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“…Polycyclic aromatic hydrocarbons (PAHs) partitioning among dissolved phase, suspended particulate matter, pore water, and sediment was studied in one moderately contaminated river (Yongding New River) and two highly contaminated drainage canals (South Drainage Canal and North Drainage Canal) of Tianjin, China (Qi et al, 2012). The PAH concentrations in sediment (ranged from 0.2 to 195 μg/g) showed positive correlation with both total organic carbon contents (ranged from 0.7% to 31.1%, dw) and black carbon contents (ranged from 0.1% to 2.1%, dw) in the sediments and most of the measured organic carbon normalized partition coefficients of PAHs in the three streams were 0.76 to 1.54 log units higher than the predicted values.…”

Section: Fate and Transportmentioning

confidence: 99%

Contaminated Aquatic Sediments

Jaglal¹

2013

Water Environment Research

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Partitioning and sources of PAHs in wastewater receiving streams of Tianjin, China

Cited by 11 publications

References 32 publications

Transport and fluxes of terrestrial polycyclic aromatic hydrocarbons in a small mountain river and submarine canyon system

Transport and fluxes of terrestrial polycyclic aromatic hydrocarbons in a small mountain river and submarine canyon system

PAH occurrence in chalk river systems from the Jura region (France). Pertinence of suspended particulate matter and sediment as matrices for river quality monitoring

Contaminated Aquatic Sediments

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